import Vue from 'vue'
import VueRouter from 'vue-router'

import Login from '../components/Login'
import Home from '../components/Home'
import Welcome from '../components/Welcome'
import Users from '../components/user/Users'

Vue.use(VueRouter)

const routes = [
  {
    path:'/',
    redirect:'/login'
  },
  {
    path:'/login',
    component:Login
  },
  {
    path:'/home',
    component:Home,
    redirect:'/Welcome',
    children:[
      {
        path:'/welcome',
        component:Welcome
      },
      {
        path:'/users',
        component:Users
      }
    ]
  }
]

const router = new VueRouter({
  routes
})

router.beforeEach((to, from, next) => {
  // to and from are both route objects. must call `next`.
  if(to.path === '/login') return next();
  const token = window.sessionStorage.getItem('token')
  if(!token) return next('/login')
  next()
})

export default router
